{"entry-date":"2026-09-30","start-date":"1986-08-14","end-date":"","entity":31678812,"name":"21, LITTLE PORTLAND STREET W1","dataset":"listed-building","typology":"geography","reference":"1222207","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.140789 51.517137)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1222207","listed-building-grade":"II"}